import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/User/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(Router)

const router = new Router({
    routes: [
        { path: '/', redirect: '/login' },
        { path: '/login', component: Login },
        {
            path: '/home',
            component: Home,
            redirect: '/welcome',
            children: [{
                path: '/welcome', component: Welcome
            }, {
                path: '/users', component: Users
            }, {
                path: '/rights', component: Rights
            }, {
                path: '/roles', component: Roles
            }, {
                path: '/categories', component: Cate
            }, {
                path: '/params', component: Params
            }, {
                path: '/goods', component: GoodsList
            }, {
                path: '/goods/add', component: Add
            }, {
                path: '/orders', component: Order
            }, {
                path: '/reports', component: Report
            }]
        }

    ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
    // to 将要访问的路径
    // from 从那个路径跳转而来
    // next 是一个函数 表示放行
    //   next()  放行  next('/login')  强制跳转

    if (to.path === '/login') return next()
    // 获取 token
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    next()
})

export default router
